نتایج جستجو برای: neofusicoccum
تعداد نتایج: 242 فیلتر نتایج به سال:
during 2004–2007 various own rooted vineyards were inspected to study the fungi associated with vine trunk diseases in iran. samples from declining vines showing yellowing and reduced growth and different symptoms in wood, including browning of the wood, necrosis, brown and black streaking and white rot were collected. fungal isolations were made from affected tissues onto malt extract agar (me...
نجفینیا م. 1394. روش مدیریت بیماری سرخشکیدگی مرکبات. دانش بیماریشناسی گیاهی 5(1):36-26. مرکبات بهویژه در جنوب ایران سطح زیر کشت نسبتاً وسیعی را به خود اختصاص داده و نقش بسیار مهمی در اقتصاد منطقه و کشور ایفا میکند. طی سالهای اخیر یکی از عوامل تهدیدکننده باغهای مرکبات در مناطق گرم کشور، بیماری سرخشکیدگی مرکبات است. قارچ Neofusicoccum mangiferae بهعنوان مهمترین عامل ایجادکننده سرخشکیدگی د...
Abstract The Esca disease complex includes some of the most important trunk diseases grapevines ( Vitis spp.) and causes serious yield losses in grape production worldwide. However, there has been no detailed study on its presence associated pathogens China. During 2017–2019, a preliminary field survey was conducted eight vineyards Hebei Ningxia provinces, China when unusual foliar symptoms wer...
Botryosphaeria is a species-rich genus with a cosmopolitan distribution, commonly associated with dieback and cankers of woody plants. As many as 18 anamorph genera have been associated with Botryosphaeria, most of which have been reduced to synonymy under Diplodia (conidia mostly ovoid, pigmented, thick-walled), or Fusicoccum (conidia mostly fusoid, hyaline, thin-walled). However, there are nu...
Grapevine trunk diseases: Eutypa dieback, esca and Botryosphaeria dieback, which incidence has increased recently, are associated with several symptoms finally leading to the plant death. In the absence of efficient treatments, these diseases are a major problem for the viticulture; however, the factors involved in disease progression are not still fully identified. In order to get a better und...
Esca is a grapevine trunk disease (GTD) associated with different pathogenic fungi inhabiting the woody tissues. Bacteria can also be found in such tissues and they may interact with these fungal colonizers. Although such types of microbial interactions have been observed for wood diseases in many trees, this has never been studied for grapevine. In this study, the bacterial microflora of diffe...
During a survey of diseased plants on Wando Island, Korea from May to June 2020, severe leaf spot disease was observed in the upper leaves Japanese bay tree (Machilus thunbergii). Early symptoms were light blackish spots surface and enlargement older spots. Dry surrounded with deep black margins common throughout plants. Symptomatic samples collected, causal pathogen isolated potato dextrose ag...
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